user
Compose an email to your professor expressing disagreement with their answer and articulate why you think your opinion is valid.
Subject: Disagreement with professor's response
Dear Professor, 

I wanted to express my disagreement with your last answer to my question.


assistant
Dear Professor, 

I wanted to express my disagreement with your last answer to my question. I believe that the answer you provided is incomplete and does not fully consider my question. I believe my understanding of the given material is correct and that my opinion is valid. I would appreciate if you could take the time to explain your response and provide further clarification. 

Thank you for your time and consideration.

Sincerely,
[Your Name]